Homework 2: Problem 7 (1 point) 3 Find a formula for f 1(x) if f(x) - f-1(20) = ( f-1)' (20 ) =[ Hint: Undo the operations of f(x) from the outside in. Undo the cubed operation first.Homework 2: Problem 8 (1 point) Suppose f(a) = 3x + 4. Then the inverse of f is given by f-1(20) =[ Moreover, f'(x) = and ( f-1)' ( 20 ) = 0 In general, if f'(a) = A, then ( f-1)' (f ( ze)) = (Note: Your answer must be in terms of A.) Now let f(a) = ac + 2. Then f(1) =[ f' (1) =[ f-1(2 ) = and (f-1)' (2 ) =0 Notice that you can obtain the last two results without knowing a general expression for the inverse function of f. Indeed, if you feel enterprising try to come up with such an expression